Finding the Fourth Proportional to 68,630.68, 102,937.74 and 31,150.96
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Solution
The fourth proportional to 68,630.68, 102,937.74 and 31,150.96 is: 46,722.68
Step by Step Solution
- Step 1: Write the proportion equation
68,630.68 : 102,937.74 = 31,150.96 : x - Step 2: Convert to fraction form
68,630.68/102,937.74 = 31,150.96/x - Step 3: Cross multiply
68,630.68x = 102,937.74 × 31,150.96 - Step 4: Simplify right side
68,630.68x = 3,206,609,421.23 - Step 5: Solve for x
x = 3,206,609,421.23/68,630.68 - Step 6: Final answer
x = 46,722.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.